package com.example.groudChat;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.*;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import jdk.nashorn.internal.runtime.WithObject;

public class GroupChatServer {

    private int port;

    public  GroupChatServer(int port){
        this.port=port;
    }

    public void  run() throws InterruptedException {

        EventLoopGroup bossGroup= new NioEventLoopGroup(1);
        EventLoopGroup workGroup = new NioEventLoopGroup();
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup,workGroup)
                .channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG,128)
                .childOption(ChannelOption.SO_KEEPALIVE,true)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel socketChannel) throws Exception {
                        ChannelPipeline pipeline = socketChannel.pipeline();
                        pipeline.addLast("decoder",new StringDecoder());
                        pipeline.addLast("encoder",new StringEncoder());
                        pipeline.addLast(new GroupChatServerHandler());
                    }
                });
        System.out.println("netty服务器 启动了" );
        ChannelFuture channelFuture = b.bind(port).sync();
        //监听关闭
        channelFuture.channel().closeFuture().sync();
        bossGroup.shutdownGracefully();
        workGroup.shutdownGracefully();
    }


    public static void main(String[] args) throws InterruptedException {
        GroupChatServer groupChatServer = new GroupChatServer(7000);
        groupChatServer.run();

    }
}
